Synthesis and characterization of branched polypyrrole/titanium dioxide photocatalysts

被引：31
|
作者：
Macedo, Ericleiton R. [1 ,2 ]
Oliveira, Patricia S. [1 ]
de Oliveira, Helinando P. [1 ]
机构：
[1] Univ Fed Vale Sao Francisco, Inst Pesquisa Ciencia Mat, Lab Espect Impedancia & Mat Organ, BR-48902300 Juazeiro, BA, Brazil
[2] Inst Fed Educ Ciencia & Tecnol Sertao Pernambucan, BR-56302320 Petrolina, PE, Brazil
来源：
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2015年 / 307卷
关键词：
Polypyrrole; Rhodamine B; Electrochemical synthesis; Composite; RHODAMINE-B; COMPOSITES; PHOTODEGRADATION; POLYMERIZATION; NANOCOMPOSITES; NANOPARTICLES; CONDUCTIVITY; DENDRIMERS;
D O I：
10.1016/j.jphotochem.2015.04.013
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Polymer composites synthesized by fractal growth of polypyrrole in the presence of titanium dioxide nanoparticles were investigated as potential photocatalysts. These branched structures are characterized by high surface area and improved action as photocatalyst in the degradation of rhodamine B. The resulting absorption of photons in the visible region and low rate of electron-hole recombination with adequate generation of radicals for subsequent N-deethylation of rhodamine B represent important aspects which corroborate potential application of new composite as efficient photocatalyst. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：108 / 114
页数：7
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